Water treatment equipments purification and sanitation of water-varies as to the source and kinds of water. Municipal waters, for example, consist of surface water and ground water, and their treatment is to be distinguished from that of industrial water supplies. Municipal water supplies are treated by public or private water utilities to make the water potable (safe to drink) and palatable (aesthetically pleasing) and to insure an adequate supply of water to meet the needs of the community at a reasonable cost. Except in exceedingly rare instances, the entire supply is treated to drinking water quality for three reasons: it is generally not feasible to supply water of more than one quality; it is difficult to control public access to water not treated to drinking water quality and a substantial amount of water treatment equipments may be required even if the water is not intended for human consumption.
Chemical dosing system react not only with microorganisms but also with naturally occurring organic matter present in the water, producing trace amounts of contaminants collectively referred to as disinfection byproducts (DBP). The most well-known DBP are the trihalomethanes. Although DBP are not known to be toxic at the concentrations found in drinking water, some are known to be toxic at much higher concentrations. Therefore, prudence dictates that reasonable efforts be made to minimize their presence in drinking water.
chemicals may be added at the same time, including powdered activated carbon (to absorb taste- and odor causing chemicals or to remove synthetic chemicals); chemical oxidants such as chlorine, ozone, chlorine dioxide, or potassium permanganate (to initiate disinfection, to oxidize organic contaminants, to control taste and odor, or to oxidize inorganic contaminants such as iron, manganese, and sulfide); and acid or base (to control pH). Coagulated particles are aggregated into large, rapidly settling "floc" particles by flocculation, accomplished by gently stirring the water using paddles, turbines, or impellers. This process typically takes 20 to 30 minutes. The flocculated water is then gently introduced into a sedimentation basin, where the floc particles are given about two to four hours to settle out.
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| Metering and Dosing Pump Manufacturer India |
Focus Engineerrs is one of the electronic metering and dosing pump manufacturer in india. It provides all kinds of metering and dosing pumps, industrial pumps and chemical dosing system pumps in chennai, India.
1. Plunger Type Dosing / Metering Pumps
2. Diaphragm Type Dosing / Metering Pumps
3. Industrial Sump Pumps
4. Multi Head Dosing / Metering Pumps
5. Electromagnetic Diaphragm Pumps
6. High Pressure Pumps
7. Triplex Pumps
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